They contributed to the end of segregation, it made people open their eyes and see how bad segregation is, they showed people how bad segregation is, how fed up they are about it, and how powerful they can be, made people want to end segregation to stop the mobs.
they resulted in violence which hurt a lot of people and destroyed places
Chicago School Boycott
non-violent, doesn't look bad in the press
may take a long time to really have an impact and succeed